Lubricating twister ring



Marsh 23, 1937. A. P. LEWIS LUBRICATING TWISTER RING Filed June 29, 1955 ATTORNEY Patented Mar. 23, 1 9 37 OFFICE LUBBICATING TWlSTEB RING:

Arthur P. Lewis, Fair Haven, Mass aosignor to Firestone Cotton Mills, New Bedford, Mala, a

corporation of Massachusetts Application June so, 1935, Serial no. 29.0.20"

2 claims.

This invention relates to lubricating twister rings such as are used in the textile industry to support respective ear-shaped travelers on spinning or twisting frames, and more especially it relates to improvements in the automatic lubrication of twister rings.

' The chief objects of the invention are to reduce wear on the traveler; and to effect uniformity of twist and tension in the yarn being processed. More specifically, the invention aims to provide lubrication at the top of the ring; and to improve the mechanical features of the means for lubrieating the inner bearing surface of the ring. Uther objects will be manifest. Of the accompanying drawing:

Figure l is a fragmentary vertical section of a yarn-twister mechanism including the improved twister ring, in its preferred form;

Figure 2 is a plan view. on a larger scale, of a portifn thereof as seen from line -22 of Figure l Figure 3 is a. diametric section of the improved twister ring; and

Figure 4 is a detail sectional view, on a larger scale, on the line 4-4 of Figure 3.

Referring to the drawing, I0 is a portion of the frame of a twisting machine, II, II are rotatable bobbins thereon, Ills one of a series of transmission belts for driving the respective bobbins,

and i3 is a horizontal vertically reciprocablering plate that carries twister rings ll, ll, the latter being arranged concentrically of the respective bobbins ll. As is most clearly shown in Figure 1, each ring it is supported in the ring plate ll in such a manner that the top and bottom edges of the ring are spaced from said plate, and

loosely mounted upon each of said rings in the usual well known manner is an ear-shaped traveler ii that rests upon the upper edge of the ring and travels circumferentially of'the. ring as the rotating bobbin ll draws yarn. onto itself. The traveler i5 is so shaped that the lower'portion thereof bears against the inner surface of or duct ll extending through the ring. Mounted in the groove i1 is an absorbent wick it, both end portions of which project through the duct II and extend into a receptacle 2. for lubricating 55 oil. a The receptacles 20 are carried by the ring pate it, each of said receptacles being so positioned as to receive the wicks II from two rings l4. As is most clearly shown in Figure 4, the edges of the groove II, on the inner bearing face of the ring, are rounded, with the result that the presence of the groove l'l does not produce wear on the-traveler such as occurs when the edges of the groove aresharp, as in prior constructions, Oil from the receptacle 20 permeates the .wick I, through capillary action, traveler It as the latter moves about the ring it. Oil from the wick I! does not spread to the top bearing edge of the ring l5 and in prior constructions this portion of the, ring has been without lubrication. In the present invention the 15 low the bearing llne of said top edge. Mounted 20 in the duct 22 is a wick 23,'the lower end portion of which extends, with the wick It, to the oil receptacle 20., A small portion of the wick 23 projects from the upper end of duct 22 and is contacted by the rotating traveler It so as to 25 apply-lubricant thereto, said lubricant spreading so as to lubricate the bearing surface of the edge of the ring, upon which the traveler rests. Even after the projecting end of the wick has been worn off by the traveler, there is suillcient suction 30 caused by the rapid rotation of the traveler to cause a minute jet or film of oil to be projected onto the adjacent bearing surfaces of the ring and traveler.

The feature of having the delivery end of the 35 duct 22 positioned below the bearing line of the top of ring It results in an uninterrupted bearing surface for the traveler, and the latter moves smoothly in its orbit without such jumping and uneven rotation as would be the case if the duct 40 opened onto the said bearing surface. The arrangement avoids wear on the ring and traveler, and makes for uniformity in the physical characteristics of the yarn being processed. The feature of rounding the edges of the wick-groove I1 obviates wear on the traveler below the knee thereof, so that by the lubricating of the top edge of the ring, substantially all frictional wear on the traveler is eliminated and longer life of the latter assured. v v

Modification may be resorted to without departing from the spirit of the invention or the scope of the appended claims.

What is claimed is: v 1. A twister ring having a circumferential and passes to the 0 groove formed in the inner peripheral face thereof, the edges of said groove being rounded at their juncture with said peripheral face of the ring, said groove communicating with a radial duct through the ring, a second duct extending through the ring and terminating at its inner end a on the rounded top edge of the ring at a point removed from the bearing line of said top edge but in such close proximity thereto as to be sub- 10 iected to suction by the passage of a traveler thereover, respective wicks in said groove and ductaand means for supplying lubricant to said wicks. 1

2. A twister ring having a curcumi'erential l8 groove formed in its inner peripheral face, the

edges of said groove being rounded at their juncture with the said peripheral face, said groove communicating with a radial duct through the ring, a wick mounted in said groove and extending through said duct, a second duct formed in the ring and extending upwardly from said firstmentioned duct and terminating on the rounded top edge of the ring, below and laterally of the bearing surface of said top edge and in such close proximity to said surface as to be subjected to suction by the movement of a traveler thereover; a wick in said second duct. and means for supplying oil to said wicks.

ARTHUR P. LEWIS. 

